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Acquisitions and Divestitures - Acquisition of Grapevine Logic, Inc (Details) old
$ / shares in Units, $ in Millions
1 Months Ended
Jun. 30, 2019
USD ($)
shares
May 31, 2019
item
$ / shares
Sep. 30, 2018
USD ($)
Grapevine Logic, Inc. ("Grapevine")      
Acquisitions and Divestitures      
Noncontrolling Interest, Ownership Percentage by Parent 100.00%    
Grapevine Logic, Inc. ("Grapevine")      
Acquisitions and Divestitures      
Percentage of ownership interest acquired 34.35%   65.65%
Cash paid to acquire entity     $ 2.4
Business Acquisition Ratio Of Consideration Payable In Cash     0.333
Business Acquisition Ratio Of Consideration Payable In Common Stock     0.667
Number Of Amendments | item   2  
Shares Issued, Price Per Share | $ / shares   $ 1.84  
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares 590,671    
Non Controlling Interest Carrying Amount $ 0.5    
Change In Additional Paid In Capital $ 1.1    
Grapevine Logic, Inc. ("Grapevine") | Fomalhaut Limited [Member]      
Acquisitions and Divestitures      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners     34.35%